[1] Univ Munich, Inst Clin Radiol, Klinikum Grosshadern, D-81377 Munich, Germany
[2] Harvard Univ, Sch Med, Dept Radiol,Cardiac MR PET CT Program, Massachusetts Gen Hosp,Div Cardiol, Boston, MA 02115 USA
[3] Med Univ S Carolina, Dept Radiol & Radiol Sci, Charleston, SC 29425 USA
[4] Johns Hopkins Univ, Dept Radiol, Baltimore, MD USA